Constant software updates is like one of the main features SAAB boasts on it lol
These mainly aren't actually "engineer changes two lines of code" updates. These are actually more like internal database updates. Every time an F-35 or Gripen is flown, it generates data about itself and I believe also about the other planes it's up against. This gets synced to other F-35s (or Gripens) for their future missions.